I study about core of Zen, for example, Zen is nature around us, it’s the knowledge that everyone can study about it because Zen doesn’t refer to any written book or worship Zen is understand about yourselves and feel the nature, the things around you. Enlightenment of Zen is called Satori. Satori is meditating by set your mind free and clear. And another thing that I have learned from this lesson is vocabularies about religious, which I can research more about these vocabularies.